…that allow you to give access to folders of bookmarks to others. Looks interesting…
From MasterMindExplorer (emphasis added):
iKeepBookmarks is a web-based bookmark manager that allows users to create accounts and upload, download, and manage bookmarks and favorite links. You can make your account public so that anyone can access your bookmarks without becoming a member. Professionals such as managers or teachers can use iKeepBookmarks as a collaboration tool by creating folders of bookmarks for employees or students to access. There is also a pop-up feature that allows you to add links while surfing the web. Free.